There are a number of measurements available to quantify and rank the quality of life among the world's nations. The Secular Community has initially chosen three prominent indexes to rank its member chapters:
The Human Development Index is published by the United Nations Development Programme. It was created to place the emphasis on "people and their capabilities" as a measure of a country's development, not relying solely on economic growth. The HDI is a combination of three dimensions of human development, a long and healthy life, knowledge (education) and a decent standard of living.
The World Happiness Report is published by the Sustainable Development Solutions Network and is based largely on poll data from the Gallup World Poll. It is a "survey of the state of global happiness that ranks 156 countries by how happy their citizens perceive themselves to be."
First started in 2009, the Global Peace Index is produced by the Institute for Economics & Peace (IEP). The index is intended to measure "the relative position of nations' and regions' peacefulness." The GPI ranks 172 countries and territories, which accounts for 99.7% of the world's population.